Enhanced broadband near-infrared luminescence in Bi-doped glasses by co-doping with Ag

Beibei Xu, Ping Chen, Shifeng Zhou, Zhanglian Hong, Jianhua Hao, Jianrong Qiu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

18 Citations (Scopus)

Abstract

Enhanced broadband near-infrared luminescence has been observed in Bi-doped oxyfluoride glasses excited from UV to near-infrared regions with the addition of AgCl. Enhancement factors depend greatly on excitation wavelength and maximal enhancement factor over three times occurs at the excitation wavelength around 320, 640, and 800 nm. Ag species play dual functions. The mechanism of the enhancement is discussed in depth combing the energy transfer from Ag, molecular-like, nonplasmonic Ag species, Bi3and Bi2to near-infrared bismuth active centers, and the redox reaction of Bi species with Ag species. These results offer a valuable way to enhance the near-infrared luminescence efficiency of Bi-doped glasses, and the dual functions of Ag species may also be employed to enhance luminescence of rare-earth and transition metal ions doped materials.
Original languageEnglish
Article number183506
JournalJournal of Applied Physics
Volume113
Issue number18
DOIs
Publication statusPublished - 14 May 2013

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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